Building wall slab



- R. C. WEBB BUILDING WALL SLAB Oct. 13, 1931 Filed Sept. 30. 1930 2 Sheets-Sheet l 2 Sheets-Sheet 2 R. C WEBB BUILDING WALL SLAB Filed Sept. 30, 1930 Oct. 13, 1931.

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' ,UNITED STATES Patented Oct. 13, 1931 PATENT OFFICE ROBERT CAREL WEBB, F BATON ROUGE, LOUISIANA BUILDING WALL SLAB Application filed September 30, 1980. Serial No. 485,484.

7 This invention relatesto improvements in slabs of formed material such for example as cement, designed for use in constructing building walls.

The primary object of the present invention is to provide an improved slab which may be cast relatively thin and applied or secured to studding so that a wall may be inexpensively a constructed and present all ofthe appearance of a wall made up of thick blocks of the type commonly employed.

Still another object of the invention is to provide a building slab having a novel edge formationdesigned to form between contacting edges'of the slabs a Water-proof jolnt.

A still further object of the invention is to provide a building slab so designed that when a number of the slabs are assembled to form a wall they maybe securely keyed together,

U}? preventing any possibility of movement between the slabs and also making the joints 'therebetween water-tight.

The invention will be best understood from n a consideration of the following detailed description taken in connection with the accompanying drawings forming partof th s specification, with the understanding, however, that the invention 'is not confined to any strict conformity with the showing of the drawings but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings:

Figure 1 is a plan view of a portion of a wall constructed with the blocks of the present invention.

Figure 2 is a view in rear elevation of the wall section shown in Figure 1.

Figure 3 is a transverse sectional view through the wall. I

Figure 4 is a detailed perspective view of aportion of the wall.

Figure 5 is a view in rear elevation of a modified form of my wall slab.

Figure 6 is a sectional view taken on the line 66 of Figure 5.

Referring more particularly to the drawings wherein like numerals of reference indicate corresponding parts throughout the several views, the numeral 1 indicates generally a building slab designed in accordance with my invention. As shown, this slab comprises a relatively thin body 2 which, in actual practice, is preferably cast in a mold of approximately twenty-four by thirty-six inches.

As shown, each of the longer edges 3 is formed on a bevel, the bevels being in the same direction or, in other words, substan- '60 tially parallel so that when the slab is placed on edge in the proper position both the top and bottom edges will be directed outwardly and downwardly from the rear face.

In the formation of each of the slabs there is cast across the rear face thereof a pair of columns 4, the center of each being hollow as indicated at 5. Each end edge of each slab is provided with a channel 6 along its back face and, as shown in Figure 4, when a number of the slabs are assembled in the formation of a wall the end edges are. brought into abutting relation so that these channels 6 are brought together to form a vertical channel along the back of the wall behind each vertical seam or joint.

In the assembling of the slabs a foundation slab 7 is provided which has a relatively thick lower portion 8 designed to be embedded in the earth and a thinner upper portion 9 which, at its lower part, is of a thickness substantially equal to the thickness of the slab and the column taken together. The first of the building slabs is mounted upon this base slab with the lower edge of the building slab resting upon the downwardly and out 'wardly inclined top edge 10 of the base slab as shown in Figure 3. The base slab has a portion of the top part 9 of reduced thickness to conform to the thickness of the building slab 2 and a pair of short starting columns 11 is formed behind this reduced portion upon which the columns 4 of the first slab may rest. In the casting of the slabs 2 there is embedded in the rear face of each, adjacent each end edge and in a line parallel therewith, and adjacent one side of each column 4 and in a line parallel therewith, a series of threaded bolts 12.

- In assembling the slabs there are positioned 1051 over the rear faces thereof studs 13. Certain disposed braces or brackets 14, the ends of which are apertured to receive the bolts and are held thereon by nuts,"as is shown. 7

It will thus be'seen that all of the channels 6 are covered by studs and these channels are then filled with a suitable cement inizture which acts to bind together the adjacent abuttingedges of the slabs", the abutting faces havingpreviously been suppliedwlth a suitable cementing material so that moisture will rods therein.

be prevented from working therebe'twcen.

Thealigned columns 14 of. the slabs have reinforcing bars 15 therein and the columns are then'iilled with a suitablecementmixture as indicatedat 16, which joins these columns together and firmly secures the reinforcing From. the foregoing it will be seen that :Wit'h building slabs constructed in accordancc with this invention the horizontal joints formed therebetween, because of their being sloped outwardly and downwardly, will" not pass water between the slabs and will not permit water'or moisture tojcollect and work inwardly. In addition to this these 'joints'rare 1 filled with a suitable cementing -mixtu're the.

same as the vertical joints. 1

The interior surfaces of the'w'alls construct ed from slabs" of the character herein described may be finished in any suitable manner by applying. the finishing material directly to the surfaces of the studs v In Figure?) I have shown a slightly modiform of.- my slab and-the wallwhich may be constructed therefrom. :In this formlthe slab which is here indicated generally by the numeral 17 is'cast with the two columns 18 and 19'transversely of its'rearface, the'col unrrn18 being: at the transverse center of the I slab while the column 19 is formed atone'end to receive the adj acentboltsy Holding nuts are then placed upon the belts and drawn I tighttlrereonagainst the adjacentstu d so that the studs actto connect the slabs acrosstheir horizontal edges; As shown, the endedge'of each slab which isopposite the end where the stud 19' isformed fits into the recess 20 readily seen that a building wall may be easily .{and economically constructed when using slabsmade in accordance with the present. invention and while from the exterior thewall will have all of, the appearance of a wall made of the usualheavy thick blocks, it,

will be of relatively light construction. While the construction of a wall made'from slabs of the character herein describedis held'together bythe'joists and becauseof the'uniquemanner inwhich they are keyed together at the'vertical joints and-between the -columns4: which are castintegral with the slabs. L 7

Having thus described my invention, what Iclaim'is: I

1; In a wall construction, a plurality of slabs of prescast material disposed vertically in edge to edge abutting relation, Vertically aligned columns cast integral with the slabs, vertically disposed members positioned against said columns and extending across the joints between the slabs, and'means for securing :said members in position against the columns and the slabs. 1 V i e 2. In a. wall construction, .a plurality of pre-cast slabs disposed in edge abutting'relation,rsaid slabshaving their abutting hori-- zon'tal' edges beveled to form an outwardly anddownwardly inclined joint, a column cast integral with: each slab and disposed vertically'iwhen the'slab is in set up'positi-omthe columns ofthe set up superposed slabs being in vertical alignment, and'joists disposed vertically against-the rear faces of the slabs and against adjacent aligned columns and secu'red against the columns, said joistsextending-across thehorizontal joints betweenthe slabs to rigi'dly 'secure the latter in position.

3. In a wall construction, a plurality of pre-cast slabs disposed in vertical position in side and end edge abutting relation, said side edges forming horizontal seams and-being designedto form seams directed. outwardly and downwardly, said slabs at their abutting side edges having the rear faces-recessed, verticalcolumns formed across the rear faces of the slabs and.integral therewith, means for oin1ngsa1d vertical columns, and means coacting with said edge recesses whereby the slabs may be banded at their side edges.

4. In a wall construction, a plurality of pre-cast slabs disposed in vertical position in side and end edge abutting relation, said side edges forming horizontal seams and'being designed to form seams directed outwardly and downwardly, said slabs attheir abutting side edges having the rear: faces recessed,

5. In a wall construction, a plurality of pre-castslabs disposed in vertical end and side edge abutting relation, said slabs having their side edges formed to provide inclined joints and further having recesses formed along their rear faces at the end edges, columns formed integral with said slabs, said columns being vertically aligned in the assembled slabs, vertically disposed joists positioned against the rear faces of the assembled slabs and overlying said recesses, bonding material maintained in said recesses by said joists and connecting said slabs together, and vertically disposed joists secured against the rear faces of the slabs and in contact with said columns.

6. In a wall construction of the character described, a plurality of pre-cast slabs disposed vertically in end and side edge abutting relation, columns formed transversely of the rear faces of and integral with said slabs, said columns being tubular and disposed in vertical alignment, reinforcing oists extending vertically of the rear faces of the slabs and disposed against said columns, brace elements connecting said reinforcing joists with the slabs, and a reinforcing material within and filling said columns.

7. In a wall construction, a plurality of pre-cast slabs disposed in vertical position and inside and edge abutting relation, columns formed transversely of said slabs and integral therewith, said columns being disposed in vertical alignment, bolt members embedded in said columns and projecting laterally therefrom, and reinforcing joists disposed vertically of the rear faces ofthe slabs against said columns and receiving said bolts.

8. In a wall construction, a plurality of pre-cast slabs disposed in'vertical position and in side and edge abutting relation, columns formed transversely of said slabs and integral therewith, said columns being disposed in vertical alignment. bolt members embedded in said columns and projectinglatterally therefrom, reinforcing joists disposed vertically of the rear faces of the slabs against said columns and receiving said bolts, and a olumn cast integrally with each slab at and projecting beyond one end edge thereof, said last mentioned columns being disposed in vertical alignment, said projecting columns forming recesses at the adjacent end of the slab for the reception of the end having a relatively thick lower portion and an integral relatively thin portion extending from one edge, said thin portion havin one face flush with an adjacent face of the t ickened portion and further having its top edge beveled, a. column cast integral'with the base unit upon the thickened lower portion and extending vertically across the rear face of the thin portion, a plurality of precast slab units each of the same thickness as the narrow portions of the base units and having their lower edges beveled to coincide with the beveled top edges of the base portions, columns cast integral with the rear faces of the slabs each being designed to rest upon a base unit column, and reinforcing joists disposed vertically against one side of a vertical series of columns and secured thereto and to the adjacent slabs and narrow base unit portions.

10. In a wall construction, a plurality of pre-cast slabs disposed in vertical end and side edge abutting relation, columns formed integral with said slabs, said columns being vertically aligned in the assembled slabs, bolt members embedded in and projecting from the rear faces of the slabs adjacent the columns, vertically disposed joists positioned against the rear faces of the assembled slabs and also against a vertical series of columns, and securing brackets disposed across the angle formed between the rear faces of the slabs and illQ, joists and engaging said bolts at one end and having their other ends secured to the adjacent joists.

In testimony whereof I hereunto aflix my 

